Historical on-time performance
Miami to Los Angeles
2,342 miData through May 2026Source: US DOT · BTS
Flights on MIA–LAX arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 3,247 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time79%Medianon timep9040 minCancel1.2%Flights493
- American AirlinesOn-time73%Medianon timep9050 minCancel0.5%Flights2,754
Why flights run late
Delay causes
- Airline37%
- Weather7%
- Air traffic (NAS)14%
- Late aircraft41%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline32%
- Weather58%
- Air traffic (NAS)11%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 19 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MIA → LAX
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 25 min · 4,514 flights
- Middays77% on time · p90 45 min · 844 flights
- Afternoons64% on time · p90 80 min · 1,204 flights
- Evenings63% on time · p90 75 min · 2,144 flights
- Overnights60% on time · p90 80 min · 1,541 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 75% on time.
- Tuesdays75% on time · p90 50 min · 1,460 flights
- Wednesdays75% on time · p90 50 min · 1,459 flights
- Mondays74% on time · p90 50 min · 1,470 flights
- Thursdays73% on time · p90 50 min · 1,479 flights
- Saturdays73% on time · p90 60 min · 1,416 flights
- Fridays73% on time · p90 50 min · 1,483 flights
- Sundays68% on time · p90 65 min · 1,480 flights
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